Axle-box



(No Model.)

VI. F. BLACK.

AXLE BOX.

Patented Apr. 2, 1889 IN VEN T OR.

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WITNESSES, @lf. W j

NITE STATES ATENT FFICE.

AXLE-BOX.

SPECIFICATION forming part of Letters Patent No. 400,735, dated April 2,1889.

Application filed October 6, 1888. Serial No. 287,433. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM F. BLACK, of Cleveland, in the county ofCuyahoga and State of Ohio, have invented certain new and usefulImprovements in Axlel3oxes for Vehicles; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use the same.

My invention relates to improvements in axle-boxes for vehicles, inwhich a detachable thimble is screwed into the inner end of theaxle-box, so as to form a continuation of the box, the enlarged free endor head of the thimble protruding from the hub and fitting into anannular chamber in the outer face of the opposing axle-collar, to theend that dirt and dust are excluded from the box, and that suchremovable thimble, sustaining the endthrust and consequent wear, may beof other and better material for the purpose than the material of thebox proper, and that thethimble may be adjusted to take .up lost endmotion, and that a new thimble may at a trifling cost be supplied at anytime to take the place of the old worn-out thimble.

lVith these objects in view my invention consists in certain features ofconstruction and in combination of parts, hereinafter described, andpointed out in the claims.

In the accompanying drawings, Figure 1 is a longitudinal section throughthe center of axle and box. Fig. 2 is aview in perspective of thethimble detached.

A represents the axle, having collars A, the latter on their outer faceshaving, respect ively, annular chambers or grooves a.

B is the axlebox, that, in the main, may be of ordinary construction.The ends of box B are supposed to be usually about flush with the end ofthe wheel-hub. The inner end of box B is counterbored at b, and thecounterbore is preferably screw-threaded for engaging a correspondingreduced threaded section, 0, of thimble C. This thimble is bored tocorrespond with box B, and consequently fits the axle and constitutes acontinuation of the box proper. The enlarged free end or head C of thethimble fits nicely into chamber a of quent friction and wear, hadbetter be of brass or some softer metal than collar A, so that thelatter will be Worn as little as possible, for the reason that collar Ais not easily renewed, While thimble C may be renewed at a triflingcost. screwed a trifle to take up the lost end motion, and by means ofshims or packing of paper, tin, or other suitable thin material betweenthe end of boxB and shoulder c of the thimble, the latter maybe firmlyheld in place when screwed up against such packing. Prior to, attachingthe box to the wheel-hub the thimble may be removed, so that the latterdoes not in the least interfere with setting the box.

hat I claim is- 1. The combination, with vehicle-axle and axle-box, thelatter having a detachable thimble, substantially as indicated, ofaxle-collar having an annular chamber in the outer face thereof forreceiving the end of such detachable collar, substantially as set forth.

2. The combination, with vehicle axle and collar, the latter havin anannular chamber in the outer face thereof, of axle-box having adetachable thimble screwed into the inner end of the box, such thimblehaving an enlarged head adapted to fit into the chamber of theaxle-collar, substantially as set forth.

3. The combination, with vehicle axle and collar, the latter having anannular chamber in the outer face thereof concentric with the axis ofthe axle, of axle-box having an en larged end or head adapted to fitinto such annular chamber, substantially as set forth.

In testimony whereof I sign this specifica- The thimble may beuntion,'in the presence of two witnesses, this 13th day of August, 1888.

WILLIAM F. BLACK.

lVitnesses:

OHAs. 11. Donna, ALBERT E. LYNcH.

